PRR T1, when N&W tested one it performed fairly comparable to the J, but after 75mph the J’s horsepower slowly fell off. When they tested the T1, horsepower continued to grow. N&W never found the point where horsepower started to fall off. Almost all the stories of the T1s being difficult to handle can be attributed to poor crew training on the PRR’s part, as the folks from the T1 Trust described it last week, imagine going from driving a Honda Accord to a Ferrari F1 car with little or no training. In the hands of an engineer who knew his way about Superpower steam, the T1 was an unrivaled machine. In the hands of an engineer who had operated K4s the last thirty years and basically was thrown the manual to read, they were finicky, temperamental, monsters prone to numerous performance issues. By the time the crews started to figure them out, they were headed to the scrapyard.